Glider



Nov. 3, 1925- 1,559,806

C. R. SWIFT GLIDER Filed Aug. 18, 1924 .1.

Inventor: 67zm-Zes.R.SwflZ Patented Nov. 3, 1925.

. 1 i PATENT OFFICE,

- UNITED s'rATEs cmnns i swim, or mnnmaono, nassacnusnm GL IDER.

Application filed August 18 1924. Serial no; 732,095.

To all whom it may concern:

Be it known that I, CHARLES R. SWIFT, a citizen of the United States ofAmerica, and a resident of Middleboro, in the county of ,Plymouth andState of Massachusetts, have invented certain new and usefulImprovements in Gliders, of which the following-is a specification.

This invention relates to gliders and has for its object the provisionof means for warping the tips of the front or main wings of the devicewhen the rudder thereof isactuated.

The invention further consists in means whereby the wings may beactuated independently of any operation of the rudder.

The invention further consists of means for warping the rear orsecondary wings of the glider.

The invention further consists in certain novel features of constructionand arrangement of parts which will be understood readily by referenceto the description of the drawings and to the claims to be hereinaftergiven.

For the pur ose of illustratir'g the inven tion, one pre erred formthereof is shown.

t1on.

Figure 2 represents a side elevat on of the same.

' Figure 3 represents a plan of the controlling mechanism forcontrolling the action of the rudder and wings, drawn to an enlargedscale.

Figure 4 represents a vertical section of the same.

Figure 5 represents in diagram the flexible connection for controllingthe movement of the rudder, and

Figure 6 represents indiagram the flexibleconnections for controllingthe warping of the rear ends of the rear wings.

control shaft 20 and the hub of the present inven Similar charactersindicate like parts of the-several figures of the drawin In the drawings10 is a car 0? any usual construction and-provided with. a cock pit 11in which is positioned a seat 12 for the operator. Near the front of thecar 10 and from the sides thereof extend the main wings 13 which may bebraced by ribs in any well known manner.

Each side wing 13 has a'shaft 14 extending lengthwise thereof and to theouter endof each shaft 14 is secured'a plurality of arms 15, these arms15 also being secured to the tips of the wings 13 so that when a shaft14'is olscillated the tip of its wing will be war e T e inner end ofeach shaft 14 has secured A thereto a gear 17, both gears 17 meshingwith the intermediate gears 18 and 19.

.The gear 18 is loosely mounted upon the gear 19 is fixedly secured to.said shaft 20 and is provided with a clutch part 21 which is adapted tobe engaged by the clutch part 22 formed upon the drum 23 looselymountedupon the shaft 20 but slidable thereon to permit the clutchmembers 21, 22 to be engaged when the operator desires to rotate saiddrum 23, by. means of the control wheel.

The clutch members 21, 22 are nominally retained in disengaged positionby means of the bifurcated lever 24 which is adapted to be moved by theoperators foot in any well known manner.

The shaft 20 has a control wheel 25 secured thereto by which the saidshaft 20 and gears 17, 18, and 19 may be rotated.

Qn'the' drum 23 is mounted a flexible member 26 which passes over thepulleys 27, 28 on the car 10 and the pulleys 29 on the rear wings 30 andhas its opposite ends secured to opposite sides of the rudder 31 at therear end of the car 10.

The rear wings 30 are secured at their forward ends to the oppositesides of the car 10 while their rear ends are entirely disconnectedtherefrom.

These rear wings 30 are rovided with the usual ribs and to one of te're'ar ribs 32 of each win 30 is connected a flexible member 33 whicextends downwardly to a ulley 34 and then into the car around pul eys 35to the eyes 36 on the rear of the yoke 37 supporting the gears 17, 18,and 19.

The opposite ends of the flexible member 33 are secured to said eyes 30,pro'ecting' from the rear of yoke 37. Similar in axial alinement withthe shafts 14 and is adapted to be tilt-ed about its axis.

When the yoke 37 is tilted to lower the eyes 36 it is obvious that throuh the flexible member 34 the rear ends of t e wings will be warpedupwardly and when the yoke 37 is tilted sufliciently in the op ositedirection the rear of the wings 30 W1 1 be warped.

downwardly.

With the parts in the position shown in the drawin s the o erator bymeans of the control whe el 25 may actuate the shafts 14 and Warp thewings 13 as desired.

If it is desired to actuate the rudder 31 and at the same time warp thetips of the wings 13, the clutch members 21 are brought into engagementand then both operations may be performed simultaneously,

Moreover both of these operat ons may be erformed and at the same timethe rear ends of the secondary wings 3( warped by simply tilting theyoke 37 in either desired direction.

If desired the warping of the wings 13 may be accomplished with orwithout performing either of the other operations.

The construction of the device is. such that when the operator desiresto turn to the left he simply turns the control wheel 25 to the left anda ri ht turn of said wheel 25 W11]. cause the gli er to turn in thatdirection.

At the same time, the tip ends of the planes or" front wings 13 may bewarped, the end of the right wing, in a left turn, being warped in sucha manner that its forward edge is raised While at the same time thefront edge of the left wing will be depressed. 1

This warping of these wings 30 in thls manner makes more resistance onthe tip of the right wing and less resistance on the tip of the leftwing thereby causing the glider to bank in making a turn and thuspreventin any side slip thereof.

The yo e 37 is so hung that by raising the control wheel 25 both shafts14 will be turned forward warping the tips of both wings downwardly attheir front edges and reducing the resistance on both wing ends.

At thesame time through the flexible connections 33 the rear ends of therear wings 30 will be depressed thereby causing more resistance andpointing the nose of the machine downwardly.

By lowering the control wheel 25 a reverse action would result and thenose of the machine would be raised.

It is obvious therefore that the glider is under absolute control of theoperator at all times by the simple manipulation of the control wheel 25assisted by the movementof the foot when it is desired to bring therudder. control drum 23 into action.

It is believed that the operation and many advantages of the inventionwill be understood readily without further descri tion.

Having thus described my invention, I

claim 1. The combination of acar provided with a seat for the operator;an oscillating yoke on said car; a rudder von said car ;main wingsextending laterally from the front end of the car in oppositedirections; shafts extending lengthwise of said wings; cross armssecured to the outer ends ofsaid shafts; a shaft revoiubly mounted insaid yoke; intermediate gears thereon meshing with said win -shaftgears; a drum on said yoke sha t; and flexible connections between saiddrum and said rudder.

2. The combination of a car provided with a seat for'the operator; anoscillating yoke on said car; a rudder on said car; main wings extendinglaterally from the front. end of car in opposite directions; shaftsextending lengthwise of said wings; cross arms secured to the outer endsof said shafts and said wings; ears on the inner ends of said shafts; asha revolubly mounted in said yoke; intermediate gears thereon meshingwith said wing-shaft gears; a drum on said yoke shaft; flexible connections between said drum and said rudder; and a hand wheel fixedlymounted onsaid 'yoke shaft and adapted to be moved into engagement withone of said intermediate gears. 4 Signed by me at New Bedford, Mass,this 20th day of October 1923.

' CHARLES R. SWIFT.

